Greater London · England
Tulse Hill Window Mastic
Mastic around window and door frames, sills and patio doors for homes and businesses in Tulse Hill and across Greater London. Fully insured, ARBOMaster approved and guaranteed for a year.
- Rushed sealant from a window installation
- Cold air getting in at the frame edge
- Gaps where the sill meets the wall
Frames and glazing around Tulse Hill
In London conversions and blocks, the lease decides who is responsible for the frames, so check that before booking. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you live in an older home near Holy Trinity Church, the joint between an old wall and a newer frame is usually the first place rain gets in. For landlords with property near Tulse Hill station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Tulse Hill is about 1 mile north-east of Streatham, in Greater London. Tulse Hill gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Tulse Hill is one of 764 places in Greater London we cover for window mastic.
We work across the SW2, SE24 and SE27 postcode area for window mastic and the streets around it. Local streets include Ostade Road, Medora Road and Palace Road, and we cover them all. Tulse Hill sits on or near the A204, so getting to you is simple. Neighbouring places we cover for window mastic include Streatham Hill (1 mile south-west), Brixton (1 mile north-west), Clapham Park (1 mile north-west), Hyde farm estate (1 mile west) and Streatham (1 mile south-west). Within a short drive, we also cover London (4 miles north), City of Westminster (5 miles north), Marylebone (5 miles north), Kensington (6 miles north-west), St Pancras (6 miles north) and Shoreditch (6 miles north).
What’s near Tulse Hill
In Tulse Hill, that means homes and buildings near Fenstanton Primary School, The Commercial pub and Tulse Hill School and the streets around them. Tulse Hill has its own railway station: Tulse Hill station. Other landmarks nearby include Clockworks Museum (0.9 miles south) and Southside Wandsworth (3.7 miles west). Open spaces near Tulse Hill include Knight's Hill and Battersea Park Lake.
Window mastic for homes and businesses in Tulse Hill
Over two decades of sealing frames has taught us which products suit which walls. We’re ARBOMaster approved and fully insured, and we give a one-year guarantee on the work. If you have cold air getting in at the frame edge and cracked or shrunken mastic around the frame, we can help, whatever the surface.
London homes have every kind of window, from timber sashes in period terraces to aluminium and uPVC in newer blocks. Over the years, the sealant around them shrinks, cracks and pulls away, which is when draughts and damp patches appear in homes in Tulse Hill.
We stand behind the work with a one-year guarantee.
- Where
- Tulse Hill (SW2, SE24, SE27)
- Region
- Greater London
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What sealant work cannot fix
We’d rather tell you now than do work that won’t last, so these are the limits:
- A door that needs adjusting, rehanging or new seals
- Faulty window hardware
- Condensation trapped between the panes
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think.
What we seal
- Composite doors
- Window sills
- Patio & French doors
- uPVC windows
- Timber windows & doors
- Aluminium frames
Common questions in Tulse Hill
Is Tulse Hill in your area for window mastic?
Yes, Tulse Hill is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear quote.
I let a flat near Tulse Hill station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just ring 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
How much does window mastic cost in Tulse Hill?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.
What do you need from me for a quote?
Just the basics: where it is, what you’ve noticed and how we reach it. Then ring 0345 464 0079 or send us an email.
Can new sealant go over the old?
No. The old sealant always comes out first.
Where are you based?
We work from Crawley. We cover Tulse Hill and the rest of Greater London.
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
What the job involves on each surface
uPVC windows
The frame is cleaned with a product that will not harm the plastic, then the sealant goes in between frame and wall.
Composite doors
Draughts round the door leaf usually come from worn seals or adjustment, not the mastic. We seal the frame and let you know about anything else.
When to call us in Tulse Hill
Water runs down the glass onto the sill, and the ends of the sill, where it meets the wall, are where it gets in. When that sealant fails, water gets into the wall or under the frame.
It’s worth asking for a quote if you see:
- Old mastic that has gone black or come away
- Damp patches on the reveal after heavy rain
- Sealant in the wrong colour for the frame
- Gaps between the frame and the inside reveal
Managing a site like St Martin-In-The-Fields High School for Girls? Then the mastic around its windows and doors needs looking after like any other building’s.
Questions to ask before you book
- Who turns up on the day
- What insurance they hold
- Which sealant they’ll use, and why
- How the surfaces are prepared before sealing
How the visit works
There isn’t much for you to do on the day. Show us the job and we’ll take it from there. The job generally takes a few hours for a handful of frames, longer for a whole house from start to finish. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Tulse Hill. A visitor permit or a nearby bay makes the visit run more smoothly.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
Before we arrive
- Keep children and pets away from the work area
- Mention any parking rules near the property
- Tell us about any water getting in
How to get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Advice
Nearby places to Tulse Hill
Other services in Tulse Hill
Keeping the joints in good condition
Good habits help new joints last longer. A few tips:
- Keep paint and stain on wooden frames in good order
- Do not use solvent cleaners on the joint
- Air rooms to keep condensation down around windows
- Look round the frames every year or so
On timber frames, keep the paintwork in good order, because bare, wet timber moves more and pulls at the joint. Keep paint off the silicone itself.
A failed joint lets water into the wall a little at a time. Often the first sign is a damp patch inside or flaking paint on the reveal. Early resealing stops it reaching that point.
Landlord and commercial work in Tulse Hill
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.